Multiple Choice
An airplane is flying north at 500 km/h.It makes a gradual 180° turn at constant speed, changing its direction of travel from north through east to south.The process takes 40 s.The average acceleration of the plane for this turn is:
A) 12.5 km/h°s, north
B) 12.5 km/h°s, east
C) 12.5 km/h°s, south
D) 25 km/h°s, north
E) 25 km/h°s, south
Correct Answer:

Verified
Correct Answer:
Verified
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